I got an email from MyCryptoWallet explaining this situation and it's quite disturbing. I had applied for one of their crypto wallets while I was trying to get myself established last year. I never used it, thankfully, and joined Coinspot. I'd prefer not to use them though and will seek other means to exchange Steem.
For a bank to do this, must have come from either higher up in the bank (they see crypto as either competition to FIAT or illegal) or from a politician somewhere.
Either way, the lack of transparency on behalf of the bank raises some questions.